1 Answer
1

According to this LaunchPad Bug and this Debian bug, it was requested that Debian/Ubuntu have php5-fpm listen on a UNIX socket by default. This was adopted in 5.4.0-rc1, and remains in place in the Ubuntu Quantal (and likely later) packages (this was a package-only change, not an upstream one).

The solution (as outlined in my blog post on this matter) is to change where your proxy_pass points to, so that it points to unix:/var/run/php5-fpm.sock which is now the default location for php5-fpm to set its listener to (this apples to php5 package versions 5.4.0-rc1 and later in both Ubuntu and Debian at the time of this post, and only to the versions in the main repositories, and not PPAs).